ARC 791

Chesterton ARC 791 is a high-strength, 100% solids novolac epoxy coating reinforced with quartz, designed to restore and protect concrete surfaces from chemical exposure and mechanical damage. It bonds to damp or dry substrates and can be troweled onto vertical or horizontal surfaces at a minimum thickness of 6 mm, creating a tough, non-sagging overlay.

With excellent resistance to corrosive agents, ARC 791 withstands temperatures up to 200 °F dry (150 °F wet), offers compressive strength around 9,320 psi, and achieves strong adhesion that often exceeds the substrate’s failure point. Ideal for trenches, sumps, pump pads, and spill zones, it extends concrete life, cuts downtime, and reduces costly rebuilds.

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Product Features

✔ Low maintenance overlayment
✔ Provides long-term protection
✔ Avoids costly structural rebuild
✔ Non-sagging: easily applied to vertical surfaces
✔ Trowelable overlayment
✔ Applied at minimum thickness of 6 mm (1/4"")
✔ Can be applied to damp and vertical surfaces
✔ Non-shrinking, no solvents, 100% solids

    • Chemical containment

    • Floor drains and sumps

    • Process floor

    • Equipment bedding

    • Pump bases/grouting

    • Structural support columns

  • 200 °F ( 93 °C )

  • 150 °F ( 66 °C )

  • 3.4 Mpa ( )

  • Gray

  • Nominal, based on a 6 mm (240 mil) thickness

    System Kit covers 4.1 m2 (44 ft2) and contains:

    • 1 x ARC 797 System kit primer pack

    • 1 x ARC 791 resin pack

    • 3 bags of QRV reinforcem​ent

    Bulk Kit covers 16.7 m2 (180 ft2) and contains:

    • 1 x ARC 797 Bulk kit primer pack

    • 1 x ARC 791 resin

    • ARC 791 curing agent

    • 12 bags of QRV reinforcem​ent

    Note: Components are pre-measured and pre-weighed. Each kit includes mixing and application instructions plus tools.

Technical Data ↓

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